Nitrous oxide is a colourless gas. It has 2 nitrogen atoms and a single oxygen atom written as N2O. Nitrous oxide is typically used for sedation and pain relief by medical doctors and dentists. It has also been misused by people for recreational purposes.
Another use for nitrous oxide gas is as a fuel booster in cars. Nitrous oxide is not flammable at lowwer temperatures. However, when super heated the oxygen is release & helps combust the cars ordinary petrol and release more power.
The nitrous oxide sold here is for culinary purposes. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & many other culinary applications.